Rear trim for an automobile



FIG. 1 is a front perspective view of rear trim for an automobile of my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right-side view thereof; and,

FIG. 6 is a left-side view thereof.

The rear view of my design forms no part of the claimed invention. 

The ornamental design for rear trim for an automobile, as shown and described. 